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Argparse: Required argument 'y' if 'x' is present
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How about using parser.parse_known_args() method and then adding the --lport and --rport args as required args if --prox is present.
# just add --prox arg now
non_int = argparse.ArgumentParser(description="stackoverflow question",
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Fast way of finding lines in one file that are not in another?
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@mr.spuratic ah yeah, now I find it in the man diff. Thanks!
– Archeosudoerus
Nov 2 '18 at 19:17
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Why doesn't Java Map extend Collection?
...ven key
maps to, nor can you delete the entry
for a given key without knowing what
value it maps to.
Collection could be made to extend
Map, but this raises the question:
what are the keys? There's no really
satisfactory answer, and forcing one
leads to an unnatural interface.
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Singleton pattern in nodejs - is it needed?
...ntly came across this article on how to write a singleton in Node.js. I know the documentation of require states that:
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How can I get Visual Studio 2008 Windows Forms designer to render a Form that implements an abstract
... abstract class AbstractControl : UserControl // Also works for Form
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Now all we need is a Description provider.
public class AbstractControlDescriptionProvider<TAbstract, TBase> : TypeDescriptionProvider
{
public AbstractControlDescriptionProvider()
: base(TypeDescriptor.Get...
How to extract text from a string using sed?
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I tried sed -n '/[0-9]\+G[0-9]\+/p'. Now it just prints the whole string
– RanRag
Jul 19 '12 at 20:43
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How to disable code formatting for some part of the code using comments?
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Obsolete answer from 2010:
No, it's not possible right now, I've submitted a new issue which you can track.
As a temporary solution you can use external formatter plug-in for IDEA which can utilize Eclipse code formatter (I didn't check whether this particular option is supporte...
@Column(s) not allowed on a @ManyToOne property
...olumn. So, it is a joinedColumn with name "LicenseeFK". I hope it is clear now.
– Aleksandar
May 19 '17 at 11:47
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Count(*) vs Count(1) - SQL Server
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now that you ask, I'm not sure. I thought for COUNT(*) to run, it needs a table, so the sub-query should act like one. Otherwise, I don't see a way for COUNT(*) to return a meaningful value
– asgs
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How to get a specific “commit” of a gem from github?
...s_admin , and since it is in (very) active development, bugs turn up every now and then.
2 Answers
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